Is there a PropertyPlaceholderConfigurer-like class for use with Spring that accepts XML?

Question

Spring has a very handy convenience class called PropertyPlaceholderConfigurer, which takes a standard .properties file and injects values from it into your bean.xml config.

Answer 1

I just tested this, and it should just work.

PropertiesPlaceholderConfigurer contains a setPropertiesPersister method, so you can use your own subclass of PropertiesPersister. The default PropertiesPersister already supports properties in XML format.

Just to show you the fully working code:

JUnit 4.4 test case:

package org.nkl;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@ContextConfiguration(locations = { "classpath:/org/nkl/test-config.xml" })
@RunWith(SpringJUnit4ClassRunner.class)
public class PropertyTest {

    @Autowired
    private Bean bean;

    @Test
    public void testPropertyPlaceholderConfigurer() {
        assertNotNull(bean);
        assertEquals("fred", bean.getName());
    }
}

The spring config file test-config.xml

The XML properties file properties.xml - see here for description of usage.

  fred

And finally the bean:

package org.nkl;

public class Bean {
    private String name;
    public String getName() { return name; }
    public void setName(String name) { this.name = name; }
}

Hope this helps...